CN103747696A - Protective suit for use in a cooling chamber - Google Patents

Protective suit for use in a cooling chamber Download PDF

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Publication number
CN103747696A
CN103747696A CN201280016871.1A CN201280016871A CN103747696A CN 103747696 A CN103747696 A CN 103747696A CN 201280016871 A CN201280016871 A CN 201280016871A CN 103747696 A CN103747696 A CN 103747696A
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CN
China
Prior art keywords
protective garment
gloves
clothes
heater
arbitrary
Prior art date
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Granted
Application number
CN201280016871.1A
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Chinese (zh)
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CN103747696B (en
Inventor
G·R·富尔
H·齐默尔曼
K-P·赫夫曼
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Publication of CN103747696A publication Critical patent/CN103747696A/en
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Publication of CN103747696B publication Critical patent/CN103747696B/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/002—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
    • A41D13/005—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment with controlled temperature
    • A41D13/0051—Heated garments
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/005—Active or passive body temperature control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/015—Protective gloves
    • A41D19/01529—Protective gloves with thermal or fire protection
    • A41D19/01535—Heated gloves
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/033—Heater including particular mechanical reinforcing means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/036—Heaters specially adapted for garment heating

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Textile Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

A protective suit (100), especially for an operator (1) in a cooling chamber that is cooled using liquid nitrogen or vapor of the liquid nitrogen comprises a body suit (10) which has a thermally insulating, gas-tight cover material (20) and is designed to accommodate the operator (1), and a heating device (30) which is connected to the body suit (10) and is designed to heat the interior of the protective suit (100). A glove (70) which is made of a thermally insulating glove material (71) and includes a glove heater (77) is also described.

Description

For the protective garment of cooling chamber
Technical field
The present invention relates to a kind of for cooling chamber (cold), especially for the protective garment of the operating personnel in the cooling system of the cryopreservation of biological sample.The invention still further relates to a kind of for use or be used in the gloves of cooling system of cryopreservation of biological sample together with protective garment.Application of the present invention be the long term storage under the state of cooling for sample, especially for the operation of the cooling system of the cryopreservation of biological sample.
Background technology
Be known that in cooling system, for example in low temperature storehouse (cryopreservation), with freezing state, store biological sample.Low temperature storehouse conventionally the temperature below-80 ℃, particularly at the temperature below the recrystallization temperature (138 ℃) of water-ice, operate.They comprise cooling agent accumulator and multiple single case (so-called cryogenic box, major part is the Dewar bottle of being made by double walled steel) with liquid nitrogen (temperature: approximately-195 ℃).Cryogenic box stands in room under normal temperature (room temperature), and wherein, operating personnel can rest in this room special safeguard measure in the case of not needing.Traditional low temperature storehouse with single cryogenic box has many deficiencies when wanting a large amount of sample of 10,000 to 1,000,000 of cryopreservations or more sample.Aspect the validity of cryogenic box operation, be restricted, for constant cooling condition provide and when operating cryogenic box, particularly automatic operation during sample manipulations.In order to overcome these restrictions, interested is to substitute traditional cryogenic box with larger storage element.
The cooling system that is suitable for the expansion of the cryopreservation of biological sample is described in another patent application (also unexposed when the priority date of the present invention) by the present inventor.This cooling system comprises cooling chamber and cooling device, and described cooling device is provided for and utilizes cooled with liquid nitrogen cooling chamber.Although cooling system is completely automatically or semi-automatically operation under normal manipulation mode, do not need people to go to check it, operating personnel must check it in the situation that safeguarding and damage.But in the situation that there is no safeguard measure, people can not enter temperature lower than the space of-70 ℃, because the inevitably frosting of skin, eyes and lung, and can cause life-threatening situation, even after the short time period.For example, be known that cold pole at the earth is at the temperature lower than-60 ℃, people's physical performance can cause Pulmonic frosting when strong suction.
Under life-threatening environment, people's safeguard measure is normally known, for example, for space suit or the diving dress of space.But space suit is not suitable for cooling system.Space suit need cooling spacefarer because space suit due to lack convection current in free space, can tend to overheated.US3730178A has described a kind of diving dress, and it is equipped with heater.But this diving dress is due to its poor hot isolation performance and be not suitable in cooling system because used material can not tolerate low temperature.
DE202004008966U1, US3182653A and US2006/0144557A1 have described can electrically heated coat, for example, become the form of blouse, however its application is limited to when outdoor activity, for example warming to wearer when hunting, camp or stop in polar region.These coats are not suitable at the temperature of the low temperature lower than Lock-in (approximately-50 ℃) and play protective effect.
Summary of the invention
The object of the invention is for the operating personnel of the cooling system of the cryopreservation for biological sample provide improved protection, wherein, deficiency and the restriction of traditional safeguard measure are overcome.
Above-mentioned purpose by have claim 1 feature protective garment realize.Favourable embodiment of the present invention and application are recorded in the dependent claims.
According to the present invention, above-mentioned purpose realizes by total technology instruction that a kind of protective garment is provided, described protective garment especially in temperature lower than-100 ℃, particularly for example, lower than the operating personnel in-150 ℃ ,-190 ℃ or lower cooling chamber, and comprise clothes for holding operating personnel and the heater for heating clothes.Protective garment is applicable in cooling chamber, and described cooling chamber particularly utilizes the steam of liquid nitrogen or liquid nitrogen cooling.According to the present invention, clothes is made by heat shield material (encapsulating material).Sheath material is that operating personnel form airtight sheath.Heater is connected with clothes, and is suitable for the heat conduction of sheath material, make to provide in clothes physiologically acceptable temperature (higher than-30 ℃, particularly for example, higher than-10 ℃, 0 ℃ or higher temperature).Heater or its part are connected to the sheath material of clothes, make it directly to carry out temperature adjustment by heater.Inventor has been found that: in the case of being used in combination heat shield material with the heater being connected with it; so a kind of protective garment can be provided, even if also can be the personnel that wearing this protective garment at the extremely low temperature in the cooling chamber by means of cooled with liquid nitrogen, provide reliable protection.The whole health that protective garment is operating personnel provides complete and safe heat isolation.Meanwhile, operating personnel are minimized to the heat loss of cooling chamber.Operating personnel can wear normal clothing, laboratory clothes or warming (liner) fabric in protective garment.
Heater has dual-use function: first enough temperature are provided in clothes, other parts of next can warm up sheath material and/or clothes, for example hinge area, make to have under the low temperature of cooling chamber enough flexible, to guarantee the activity of operating personnel in cooling chamber.
It is cold that whole health, particularly leg, pin, arm and the hand that protective garment according to the present invention is operating personnel provides protection to resist, even in the case of the outside of protective garment directly contacts with liquid nitrogen.The operating personnel that wear protective garment can freely move and can use independently protective garment in cooling chamber.Can in cooling chamber, use at least 10 minutes, particularly at least 30 minutes, for example 60 minutes or longer time.
According to a preferred embodiment of the present invention, heater comprises resistance type heater.Resistance type heater can advantageously and easily be embedded in the sheath material of clothes or be positioned on the inner surface of sheath material.And resistance type heater advantageously can be via being connected and carrying out with the cable of internal current source and/or external current source aspect power supply, and need the short reaction time in the case of the variations in temperature of clothes.Particularly preferably be, resistance type heater comprises zone of heating, and described zone of heating is positioned in clothes with distribution mode.Zone of heating comprises stratiform resistance material, for example metal alloy, tungsten, in steam mode, applies plastic foil or the indium tin oxide layer of heating resistor.Zone of heating has advantages of the comfort of wearing that minimizes infringement operating personnel.
According to an improved embodiment of the present invention, heater can comprise heat medium loop, and described heat medium loop extends in clothes.Heat medium loop is embedded in the sheath material of clothes or is positioned on the inner surface of sheath material and is connected with inside and/or external heating medium source for gas or liquid heating medium, for example air or silicone oil.Using heat medium loop is favourable at the validity of heater and heat aspect being uniformly distributed in clothes.Particularly preferably, heat medium loop comprises multiple pipelines, and described multiple pipelines are arranged in clothes in the mode distributing, and form one or more loops (part loop).
According to another preferred embodiment of the invention, sheath material has the sandwich construction consisting of at least two restrictive coatings.Sandwich construction is favourable making sheath material be suitable for aspect mechanical protection and sealing function and heat insulating function.Therefore, restrictive coating can be formed by the material that is designed to sealing and mechanical protection, and another inner restrictive coating forms thermal insulation layer.Particularly preferably be following this structure: for this structure, the restrictive coating of outermost comprises air-tightness crust, for example, by the polymer crust that for example PTFE, metal vapor deposition thing, silicone coatings, pottery or paint form, under crust, be stabilized zone, for example, by fabric, metal fabric and wire netting, cellulosic cpd, plastic wire, carbon fabric, the resistance to composition that tears paper tinsel, rubber or these materials, made; And inwardly also have thermal insulation layer, for example by foam of polymers, polystyrene, silicone foams, glass wool, vacuum insulating panel, timber, cork, mineral wool, powder, made.Heating region can form independent, interior restrictive coating, and wherein, at least the pipeline in the part of heater, for example zone of heating or heat medium loop is arranged in heating region.Thermal insulation layer can be furnished with heat reflection paper tinsel alternatively, for example, be coated with the plastic foil of metal.Sheath material particularly can carry other layer on its outside.
Typically, thermal insulation layer by thermal conductivity lower than 0.1 or make lower than the plastics of 0.05W/ (mK).
According to another modification of the present invention, when substituting or being additional to thermal insulation layer the other intermediate layer that is filled gas or is evacuated is provided, can advantageously realize the especially effectively heat isolation of the inside of clothes.For this embodiment of the present invention, the intermediate layer that sheath material comprises at least one inflatable or is evacuated, it is preferably close to heating region and is arranged on inner side or outside.
According to a preferred embodiment of the present invention, the sheath material of clothes is flexible.Thereby it is easier that operating personnel's activity advantageously becomes.At flexible any temperature in cooling chamber, all realize as follows: at least the skin of sheath material is formed by plastics, at 200 ℃ of described plastics –, be soft and/or by heater Bei Jia Re Dao – more than 200 ℃ temperature, at this temperature, the skin of sheath material is soft.
According to an alternate embodiment of the present invention, the sheath material of clothes is rigidity, and wherein, multiple parts of clothes connect via hinge area.In this case, advantageously the material of the restrictive coating to outermost and/or its to add accordingly heat request very low.But if needed, hinge area must be heated, to keep at low temperatures flexible.
According to a particularly preferred embodiment of the present invention, particularly using in flexible sheath material or the material in hinge area, the position of heater in layer compound selected by this way with the thermal conduction characteristic of the material using: from heater, inwardly have maximum hot-fluid, outwards have the hot-fluid of less degree.In other words, more than half, preferably more than 75% hot-fluid inwardly flows, and remaining hot-fluid outwards flows and heating sheath area level or hinge area layer.Heater is with such power operation: in the inside of protective garment, reach physiologically acceptable temperature and oversheath area level or hinge area layer and be heated to such temperature: at this temperature, they are soft under the environment temperature lower than for example-90 ℃.
The position of heater for example can so that the mode that it is arranged on the inner surface of sheath material select.In this case, the inside of protective garment can effective especially mode be heated.In order to keep the flexible of external sheath layer, sheath material is selected to has lower thickness.For this modification, the energy consumption of heater increases, but wherein, because sheath material has low thickness, the weight of protective garment is low, and more comfortable, and activity is better.
Alternatively, heater can be embedded in the degree of depth of sheath material.In this case, from the inside or outside mobile hot-fluid part of heater, can select by this way: the inside of external sheath layer and protective garment is heated effectively, and operating personnel are still good with respect to the heat isolation of environment.
Preferably, the clothes with flexible sheath material is provided with and enters opening in front side, and in this position, sheath material layer arranges in bracing mode.In the case of the sandwich construction of sheath material, be provided with stair-stepping bracing region.For the clothes with rigid sheath material and hinge area, enter opening and be preferably arranged on shoulder regions or the body region of clothes.At join domain, in assembling process, rigidity or the soft Connection Element of the inside of locking and sealing protection clothes can be provided.
Advantageously, the helmet can be equipped with according to the clothes of protective garment of the present invention.The helmet is arranged in the upper part of clothes, and is configured in head zone encapsulating operation personnel airtightly.The helmet comprises mechanically stable member part, and described mechanically stable member part is surrounded operating personnel's head completely and is connected with clothes in airtight mode, and at least on operating personnel's direction of visual lines, has transparent front window.Particularly preferably, the helmet has the shape that adapts to nose shape, particularly a part for spherical or ball.If at least front window, the preferred whole helmet are formed by double walled, the window material that is evacuated, be proved to be the heat isolation of the inside that is conducive to the helmet.Particularly preferably, provide ball that the material being evacuated by double walled makes or a part for ball.
The helmet can advantageously be born at least one in the following additional function of protective garment.According to a modification, the helmet can be provided with pressure relief valve, in the situation that breathe air feedway breaks down, via described pressure relief valve, can discharge any overvoltage in protective garment.According to another modification, the helmet can be equipped with fenestrate heater, to improve operating personnel's visuality.Window heater is for example by transparent heating material, for example ITO(indium tin oxide) make.According to another modification, the helmet can be equipped with rearview mirror, can improve whereby operating personnel's backsight ability, and has reduced the requirement of the activity to protective garment.And the helmet can be equipped with coupling arrangement, protective garment can be connected with another protective garment or urgent feedway by feeding pipe via described coupling arrangement.
If clothes is divided into via leg, body and the arm of hinge area interconnection and divides, can obtain additional advantage of the present invention.Leg and arm are divided into the elongated portion of clothes, and can be equipped with other hinge area in the location of knee and ankle arthrosis or ancon and wrist.The advantage that generation is provided of hinge area is: not damaging the activity of operating personnel in cooling chamber, the flexible requirement to sheath material is lower.
According to another modification of the present invention, clothes is equipped with belting, and it is preferably around body part, and multiple parts of dividing around shank alternatively.Advantageously, external means of support, for example keep rope to be connected with belting.In case of emergency, wear protective garment operating personnel can by use bracing or strutting arrangement in reliable mode, be drawn out cooling chamber.And belting can be for tying up load in course of normal operation on protective garment.
According to protective garment of the present invention, can advantageously be equipped with urgent feedway, described urgent feedway comprises the breathe air holder in protective garment and/or the coupling arrangement for being connected with outside feedway.Breathe air holder for example comprises compressed air bottle, heater and the valve control connecting line between compressed air bottle and the inside of protective garment.Breathe air holder for example can be integrated in the helmet of clothes.
Other members that are preferably arranged on the protective garment in the helmet comprise: for the lighting apparatus of the surrounding environment of the protective garment that throws light on, be used for the sensor device of the physiological characteristic of surveying oxygen content, temperature and operating personnel, the communicator of keeping out the alarm device of disadvantageous mode of operation and/or or wire communication wireless for other assistants by or beyond operating personnel and cooling chamber for alert operator.
Protective garment according to the present invention has the shoes of the pin for holding operating personnel.Shoes for cooling chamber are had to special requirement aspect operating personnel's machinery and hot protection, and described cooling chamber is used liquid nitrogen upwards cooling from bottom conventionally.In this respect, shoes have at least one following feature.Provide the thickness of 4cm at least, particularly at least 6cm raise sole.Raise sole and make to carry out available heat isolation, and increased from shoes to the distance that is provided with the cooling device of liquid nitrogen the bottom of cooling chamber.Alternatively, raise sole and can be equipped with sole type exterior feature portion, described sole type exterior feature portion makes to reduce the contact surface between shoes and bottom.And shoes can be equipped with sole hollow space.Described sole hollow space comprises the region that is filled gas or is evacuated in sole.This has advantageously improved the heat isolation of shoes.And shoes can be provided with the protective layer that prevents that machinery is injured, for example, use pottery.
Conventionally, the size of the inside of shoes is selected to the motion in shoes for pin and has enough spaces, even if operating personnel wear heat protection clothing.In order to ensure dividing from leg or pin to the shank of protective garment and the reliable load transfer of shoes, preferably at shank, divide or in shoes, be provided with pliable adaptation element, described adaptation element is configured for holds operating personnel's part leg or pin and for providing support at protective garment.
According to protective garment of the present invention, can be connected with outside breathe air feed system via feeding pipe, particularly heated flexible pipe.But, preferably so a kind of embodiments of the invention, for this embodiment, breathe air source is arranged in protective garment.Breathe air source is applicable to respirable air supply in the inside of protective garment.Conventionally, breathe air source is contained in the back portion of protective garment.For respirable air on physiology is provided, a part for heater is configured for the air that heating is provided by breathe air source.
The additional advantage that breathe air source has is, protective garment can be heaved by the overvoltage of the environment with respect in cooling chamber.Overvoltage can be selected to and make physiological respiration condition given in protective garment, and the inside of protective garment or the part of protective garment are unfolded (expansion) under the effect of internal pressure.This has advantageously realized additional heat isolation.Alternatively, protective garment can be equipped with and independently compressed air source of breathe air source for generation of overvoltage.
Preferably, protective garment according to the present invention is equipped with at least one gloves of the hand for holding operating personnel.Gloves are made by heat insulation glove material, and are provided with gloves electric heater and/or are supplied to the gloves heater of heat medium.Gloves can be connected with clothes securely or can separate with clothes.Glove material preferred class is similar to sheath material structure.
Gloves can make independently the object being cooled for handling with clothes in cooling system.Therefore, gloves are a theme independently of the present invention.
Described at least one gloves comprise at least two, preferably at least three, particularly preferably five finger chambers, described finger chamber can be moved separately.Advantageously, described at least one gloves allow grabbing object, for example shuttle in cooling chamber.
Preferably, the size of the inside of described at least one gloves is selected to the finger that at least makes operating personnel, preferred whole hand can freely move in gloves.In order to ensure the load transfer from hand to the object that will grasp, gloves are equipped with holding element, and described holding element is configured in gloves and receives or a part, wrist or the forearm of support operation personnel's hand.Advantageously, hand can move in gloves, makes to point with respect to gloves in different positions.In primary importance, finger can be positioned near of gloves heater, is preferably placed at the rear side of gloves.In the second place, finger can be positioned at the side that grasps of finger part, with grabbing object.
Particularly preferably, the finger chamber of described at least one gloves is provided with grip areas, and in described grip areas, compared with all the other regions of gloves, glove material has the thickness reducing.Grip areas setting and size are selected between adjacent finger can form contact surface, just as using the hand grip object that there is no gloves.Proximity gloves material has thin especially design in grip areas, so that operating personnel can realize finger pressure sensing.Grip areas makes operating personnel have the sensation of grabbing object.Advantageously, grip areas can have by the surface of moulding in the outside of gloves.This makes firmly to grasp even little object, for example sample cell or analog.
And, described at least one gloves are particularly preferably configured to stand internal pressure, to form enough spaces in the inside of gloves, allow the position that grasps that contacts with glove material, particularly grip areas from finger of finger to move to the heating location that finger does not contact with glove material.When being connected with the remainder of clothes or cooling system, gloves can be inflated, for example be filled with dry air or warm air and expand, to set up internal pressure.
According to another modification of the present invention, described at least one gloves can be equipped with the receiving-member for sample carrier.For the receiving-member of sample carrier, be for example arranged on the outside of gloves, and the interim storage before being sent to another rack unit or conveying containers for the sample carrier that removes from rack unit.
Protective garment according to the present invention has following additional advantage.Because inner breathe air source is by temperature adjustment, protective garment can be used in air or purity nitrogen atmosphere in cooling chamber in.Operating personnel's brothers' good activity even at low temperatures, for example, is low to moderate at-190 ℃ or lower temperature and also can obtains.Operating personnel's physiological temp can be maintained in protective garment.Temperature can be controlled or automatically be regulated by control module by operating personnel.Protective garment allows operating personnel place fast or deposit, and this is favourable for the normal operating of cooling system and in the situation that damaging.Described at least one gloves provide good grasping ability and physiology temperature adjustment reliably for hand.
Accompanying drawing explanation
Below, by describe other details of the present invention and advantage referring to accompanying drawing.Accompanying drawing is as follows:
Figure 1A and 1B: according to two of protective garment of the present invention embodiment;
Fig. 2: the schematic cross sectional views that is provided with the sheath material of the clothes of zone of heating;
Fig. 3: the schematic cross sectional views that is provided with the sheath material of the clothes in heat medium loop;
Fig. 4: the schematic cross sectional views of the further embodiment of the sheath material of clothes;
Fig. 5 A and 5B: according to the schematic cross sectional views of the helmet of protective garment of the present invention;
Fig. 6 A and 6B: according to the schematic cross sectional views of the shoes of protective garment of the present invention;
Fig. 7 A and 7B: according to the schematic cross sectional views of gloves of the present invention;
Fig. 8 A-8C: according to the schematic diagram of the further feature of gloves of the present invention;
Fig. 9: according to the cooperation of the grip areas of gloves of the present invention;
Figure 10: the schematic diagram with the gloves heater of heat medium pipeline;
Figure 11: the schematic cross sectional views of the glove material of gloves according to the present invention in the environment of grip areas;
Figure 12: according to the protective garment of Figure 1B or according to the schematic diagram of the details of the hinge area on the gloves of Fig. 8 C;
Figure 13: according to the schematic diagram of the supply pipeline of protective garment of the present invention; And
Figure 14: according to the general description figure of the supply of protective garment of the present invention and control system.
The specific embodiment
Figure 1A and 1B have schematically shown according to two of protective garment 100 of the present invention embodiment.Protective garment 100 includes by sheath material 20(referring to Fig. 2-4) clothes 10 made and helmet 40(be referring to Fig. 5), shoes 50(is referring to Fig. 6), with the back portion 60(in breathe air source referring to Figure 14) and gloves 70(referring to Fig. 7-11).And protective garment 100 comprises that the heater 30(schematically showing is referring to Fig. 2-4).Clothes 10 comprise two shanks for holding leg divide 11, for holding the body part 12 of body and dividing 13 for two arms of the arm that holds operating personnel 1.The having of sheath material 20 enters the whole compound of opening and the connection part between clothes 10 and the helmet 40 is formed bubble-tight.They are not moisture-inhibiting gas (water vapour) particularly, to put on when protective garment 100 steps into and make cooling chamber without ice and frostless operating personnel 1.
Figure 1A is different aspect the operating pressure in feature and the protective garment 100 of sheath material 20 with embodiment in 1B.According to Figure 1A, sheath material 20 has a layer structure, and described layer structure has each other directly stacked multiple restrictive coatings.In this case, the intermediate layer that inflatable is not provided or is evacuated.The material of restrictive coating and layer order are selected to the major part of the heat being provided by heater 30 are inwardly flowed, and sheath material 20 outwards heats up, flexible thereby sheath material keeps even at low temperatures in cooling chamber.The surface temperature of required sheath material 20 must be not more than 0 ℃ for this reason.Many available fabrics, plastics or silicone material are at-10 ℃--in the scope of 50 ℃, be still flexible, thereby the surface temperature of sheath material 20 can regulate within the scope of this.According to the advantage of the embodiment of Figure 1A, be, the structure of clothes is thinner, more simply and easier, has lower technology spending simultaneously.On the contrary, disadvantageously, the heat loss of environment increases towards periphery, thereby energy consumption increases.
According to Figure 1B, protective garment 100 forms pressure suit.When using during protective garment 100, in sheath material 20 and/or clothes 10 in the internal pressure of increase be conditioned, make sheath material 20 outwardly-bent.In this case, with compared with the embodiment of Figure 1A, sheath material 20 has larger wall thickness.And sheath material 20 is at least rigidity under the low temperature in cooling chamber.Be provided with hinge area 14, to however also guarantee the operating personnel's that wear protective garment 100 free activity.
Clothes 10 is formed for operating personnel 1 gas-impermeable sheath together with the helmet 40.For according to the embodiment of Figure 1A, not under normal pressure, under the cold blanket of nitrogen in cooling chamber, to produce the airtight of pressure stability.Therefore, can be by interrupting sheath material 20 and enter opening for operating personnel form along opening line 16.The overlapping layer of the contiguous interrupting portion of sheath material 20 is arranged in the front area of body part 12.Overlapping layer can for example, interconnect each other or separate with securing member, rotary fixture, the hook-loop formula securing member with flexible band, to open or close, enters opening.
According to Figure 1B, by two component type structures of clothes 10, provide and enter opening.Sheath material 20 shank divide 11 and body part 12 between be interrupted.Rigid attachment ring 17(is shown in dotted line) be positioned at the boundary of adjacent part 11,12.Airtight and the wiper seal that coupling ring 17 is suitable for part 11,12 connects.They for example form rotary securing member, and are provided with sealant between coupling ring 17.
The heater 30 schematically showing in Figure 1A and 1B for example comprises the pipeline in electric heating layer or heat medium loop, and this will be described in greater detail below.The various piece of heater is arranged in clothes 10 and/or in back portion 60 in the mode distributing.They are particularly positioned in such region, and in this region, when for cooling chamber, sizable heat flows away, for example, at shank, divide with arm and divide 11,13 places.Electrical heating elements, for example zone of heating are preferably arranged in shoes 50 and gloves 70.
The helmet 40 is fixed and is locked on coupling ring 18 airtightly at the upper end of clothes 10.Hinge can be arranged on the rear side of coupling ring 18, and the helmet 40 can be turned at released state on hinge so that operating personnel 1 from protective garment 100 out.
Back portion 60 is positioned at the rear side of body part 12.Back portion 60 can be similar to knapsack and firmly be connected or be connected with clothes 10 with sheath material 20 by means of belt.Breathe air source, for heating a part, current source (particularly battery), the control module of heater of breathe air and the additional compressed air source while needing, be positioned at back portion 60.Back portion 60 by heat-barrier material, be for example coated with fabric, resin foam compound, the glass wool composite of carbon, the polystyrene of expansion forms, to protect described member to avoid cold.
Shoes 50 can permanently be connected with clothes 10 with gloves 70.Alternatively, also can make shoes 50 and/or gloves 70 separation with clothes 10.In this case, shoes 50 and gloves 70 are provided with connection element (referring to Fig. 7), and the pressure-tight when realizing with being tightly connected and needing of clothes 10 is connected.The front end (tiptoe) of shoes 50 is strengthened by machinery, and insensitive to contacting with liquid nitrogen.In this, the plastics that shoes 50 are used by the traditional cryogenic technique as for cryogenic box or pottery form.
Figure 1A also shows the belting 15 arranging alternatively.Belting 15 can be embedded in sheath material 20 or be arranged on the surface of sheath material 20.Operating personnel 1 in protective garment 100 can fix or can from cooling chamber, rise in the situation that damaging with keeping rope 210, and described maintenance rope can be fixed on belting 15.
According to the use of the protective garment 100 of Figure 1A, be such: first the helmet 40 is turned over, and body part 12 is opened along opening line 16.Operating personnel 1 enter in clothes 10.At this, operating personnel can wear usual clothing or warming fabric (liner fabric), for example liner headwear (shade illustrates).After this, enter opening and close along opening line 16, the helmet 40 overturns forward and in coupling ring 18 place's closures.Meanwhile, breathe air source is operated in back portion 60, to give operating personnel's 1 supply of breathing air.Operating personnel's preparation and the preparation of in this state, wearing protective garment 100 enter in cooling chamber.
Cooling chamber for example comprises bottom section, sidewall and top area, and wherein, cooling device is at least arranged in bottom section, to use cooled with liquid nitrogen cooling chamber.Sidewall is formed sealing (not having door opening) conventionally.Entering cooling chamber is undertaken by the opening in top area.Workbench is arranged in bottom section, and the operating personnel that wear protective garment 100 can move on workbench, for example to carry out maintenance work or to fetch or deposit sample container.
According to Figure 1B, the shank that correspondingly makes operating personnel 1 first enter clothes 10 divides in 11, then enters body part 12 and arm and divides 13 and the helmet 40 is put on.Protective garment 100 is hermetic closed with pressure-tight ground at coupling ring 17 places.Meanwhile, devote oneself to work in breathe air source in back portion 60, to give operating personnel's 1 supply of breathing air.
It is not enforceable that current source is provided in back portion 60.As a kind of alternative, can be connected with exterior source of energy via feeding pipe 220, described feeding pipe 220 is schematically illustrated in Figure 1B, in Figure 13, is illustrated in greater detail.
Fig. 2 A and 2B show two kinds of modification that are preferably provided for according to the sheath material 20 of the embodiment of the protective garment 100 of Figure 1A.In both cases, sheath material 20 comprises airtight crust 21, stabilized zone 22, the thermal insulation layer 23 with heat reflection paper tinsel 24, heating region 25, the storage layer 26 with endothelium 27 and tissue layer 28 from outside to inside.Operating personnel 1 body surface (clothing surface) represents with Reference numeral 2.
Crust 21 comprises air-tightness composite, and described air-tightness composite comprises fabric, for example coating plastic net, glass wool, carbon fabric, laminating foil and/or applies foam.The thickness of crust 21 is for example 0.5mm-3mm.Stabilized zone 22 is composite equally, is wherein embedded with the grid material of mechanically stable, for example plastics.The thickness of stabilized zone 22 is for example 0.1mm-2mm.The thermal insulation layer 23 that for example thickness is 3mm-10mm is for example formed by polyurethane foam, polyethylene, cork, glass foam particle, aeroge, vacuum insulating panel, mineral wool, wherein, comprise that the heat reflection paper tinsel 24 of the plastic foil that is coated with aluminium is arranged on the inner side of heat insulation layer 23.Heating region 25 comprises zone of heating, and described zone of heating is uniformly distributed and is layeredly arranged in sheath material 20.Zone of heating is powered via cable (not shown), described cable with back portion 60(referring to Fig. 1) in current source be connected and/or be connected with external current source via supply lines 220.Store layer 26 and comprise the material with high thermal capacity, for example, paraffin, wax, magnesium base composite material, graphite linings, polystyrene foam, specific heat capacity are greater than the wood components of 1kJ/kg K.It has the thickness of for example 2mm-10mm.Store layer 26 as heat buffering with for heat distribution.Endothelium 27 has mechanically stable function.Finally, tissue layer 28 consists of fabric or felt, with interior contact the between design operation personnel 1 and sheath material 20 as far as possible cosily.
According to Fig. 2 A, operating personnel 1 body surface 2 directly contacts with the inner side of jacket surface 20.Therefore, body surface 2 is directly heated up by sheath material 20.On the contrary, according to Fig. 2 B, breathe air with the pressure feed that is greater than the external environment pressure in cooling chamber in clothes 10.Like this, sheath material 20 is inflated to be heaved, and makes apart from 3(for example to form between the inner side of sheath material 20 and operating personnel 1 body surface more than 2 centimetres).By distance 3 is provided between operating personnel 1 and sheath material 20, there is the equally distributed advantage of heat in heat buffering and clothes 10.
Fig. 3 A-3C shows a kind of modified variant sheath material 20 and protective garment 100, and for this modification, heater forms by the heat medium loop 33 with pipeline 34,35. Pipeline 34,35 forms the loop of at least one sealing.Heat medium source and heat medium pump are arranged in the back portion 60 (referring to Fig. 1) of protective garment 100, and in the situation that multiple loop is provided, for star distribution apparatus from heat medium to each loop that supply with, are also positioned at back portion 60.Heat medium loop 33 comprises the multiple pipelines 34,35 for gas or liquid heating medium.If heat medium is liquid, for example water, alcohol or fluid oil, the high heat capacity of heat medium is proved to be favourable.Compare, the damage danger in the situation that leaking appears in the relatively high weight of protective garment 100 and heat medium loop can be disadvantageous.
If clothes 10 forms (referring to Figure 1B) by multiple parts,, under the assembled state of clothes 10, pipeline connects between parts.For fear of the isolation of components state lower pipeline at clothes 10, occur leaking, pipeline is provided with valve, and this valve prevents that liquid from flowing out.
Sheath material 20 has sandwich construction, and described sandwich construction has thermal insulation layer 23, the heating region 25 that is provided with pipeline 34,35, endothelium 27 and the tissue layer 28 of air-tightness crust 21, stabilized zone 22, carrying heat reflection paper tinsel 24, as above referring to described in Fig. 2 A.Pipeline 34,35 is arranged in sheath material 20 in the mode distributing.In leg and arm divide 11,13, pipeline 34,35 extends with circular pattern around operating personnel 1 end, and on the contrary, in body part 12, pipeline 34,35 extends with circular pattern around operating personnel 1 body.For example, in order to heat individually leg, body and arm, divide 11,12 and 13, multiple loops can be set.At least one loop is connected with heat medium heater (referring to Fig. 1) or external heater in back portion 60.
According to Fig. 3 A, pipeline 34,35 is arranged in such a way: the feeding pipe (pipeline 34) having from the hot heat medium of heat medium heater replaces with the return pipeline (pipeline 35) with the heat medium being cooled.According to Fig. 3 B, the feeding pipe (pipeline 34) with hot heat medium is arranged in the internal layer of heating region 25, and the return pipeline (pipeline 35) with the heat medium that is cooled is arranged in the skin of heating region 25.Heat medium heater feeds heat medium with for example temperature of 15 ℃-30 ℃.
If protective garment 100 enter that opening is arranged on body according to Fig. 3 C and arm divides 12,13 tops, can avoid using cable to connect and valve.In this case, heat medium loop 33 can be set to the pipe-line system of sealing, and does not interrupt in the sheath material 20 of clothes 10.Fig. 3 C also shows for divide 11, the 12 and 13 independent star distributors 36 of supplying with heating-medium flow to leg, body and arm.
Fig. 4 A and 4B show in the modified variant that aspect heat insulation and required heating power reduction is favourable sheath material 20.Sheath material 20 comprises oversheath 20.1 and inner sheath 20.2.It has with Fig. 2 A in the similar structure of sequence of layer, it has crust 21, stabilized zone 22 and the first thermal insulation layer 23.1, this first thermal insulation layer is provided with heat reflection paper tinsel 24.And, be provided with equally the second thermal insulation layer 23.2 of heat reflection paper tinsel 24.2 and tissue layer 28 and be arranged on a side of the inside sensing of sheath material 20.The material of restrictive coating and size can be as selecting referring to described in Fig. 2.
Blanketing gas (Fig. 4 A) or the intermediate layer 29 that is evacuated (Fig. 4 B) are positioned between the first and second thermal insulation layers 23.1,23.2.The inner surface in the intermediate layer 29 of blanketing gas passes through stability ribs 29.1 by mechanically stable.The heating region 25 with the zone of heating heating for the resistance-type of sheath material 20 is arranged on the inner surface of the outside sensing in intermediate layer 29.According to Fig. 4 B, intermediate layer 29 is not filled gas, but is formed with the plastic module that the member 29.3(that is evacuated is evacuated).In this case, zone of heating 25 is arranged on the inner surface in intermediate layer 29.
Two modification of Fig. 4 A and 4B are characterised in that, sheath material 20 has reduce flexible or has rigidity completely.Operating personnel 1 the activity of in this case, wearing protective garment 100 by hinge area 14(referring to Figure 1B) be guaranteed.
Fig. 5 A and 5B show the helmet 40 according to protective garment 100 of the present invention with front schematic view (Fig. 5 A) and sectional view (Fig. 5 B).The helmet 40 comprises the double walled ball that cuts away of being made by transparent plastic, for example copolymer (elastomer), cellulose acetate, acrylonitrile, polystyrene.Ball is formed by outer wall 40.1 and inwall 40.2, and described outer wall is connected with coupling ring 48 with inwall.Space between outer wall and inwall 40.1,40.2 is evacuated, to reduce the heat conduction outside from the inside of the helmet 40.The front side that the view direction along operating personnel 1 of the helmet 40 points to forms front window 41, and described front window is equipped with fenestrate heater 41.1.And the inner surface of inwall 40.2 is by mirror-polishing processing, make heat radiation at the helmet 40 to internal reflection.
The heated breathe air that is derived from the breathe air source in back portion 60 is supplied in the helmet 40 via heat insulation feeding pipe 45.If breathing circuit is provided, breathe and also can carry out via the mouth mask with valve (not shown), the fog of the inner surface of advantageously avoiding the helmet 40 is formed.
Impact protection apparatus 40.3 is arranged on the upper top of the helmet 40, for playing protective effect when the mechanical collision and for accommodation function member, and for example light-emitting device 40.4, for example, white light LEDs, for antenna 40.5 and the pressure relief valve 42 of radio communication.If the breathe air pressure in the helmet 40 unexpectedly increases, can utilize pressure relief valve 42 to realize pressure release.And pressure relief valve 42 is provided with emergency opening element 42.1.Emergency opening element can be controlled from outside in the situation that damaging, for example, to allow air to enter in the helmet 40.Can be provided as another the urgent opening the helmet 40 from the window (not shown) of external opening.
The helmet 40 is also equipped with urgent feedway 44.Urgent feedway 44 is arranged on the rear side (back of head) of the helmet 40.It comprises compressed air bottle 44.1, cartridge heater 44.2 and valve control connecting line 44.3.Breathe air source in back portion 60 break down (referring to Fig. 1), urgent feedway 44 can activated, to be directly transferred in the helmet 40 via connecting line 44.3 mixing up warm breathe air.The storage level of the breathe air providing by compressed air bottle 44.1 is enough to urgent supply for example 5 minutes.If the supply that is pressed for time that need to grow, by means of the urgent feedway in required outside, via nozzle 44.4 urgent feedway execution breathe air supply from outside, described nozzle is connected with connecting line 44.3.
The other function element of the helmet 40 comprises microphone 40.6, ear-speaker 40.7, can pass through danger button 40.8 and the rearview mirror 40.9 of the motion actuation of operating personnel 1 head.
Fig. 6 A and 6B are respectively with the schematic longitudinal sectional view (Fig. 6 A) of the front area of shoes with show the shoes 50 according to clothes 10 of the present invention with scaled side schematic sectional view (Fig. 6 B).The design of shoes 50 is particular importance for operating personnel's safety, because shoes 50 directly contact with the coldest surface in cooling chamber.Uncovered nitrogen lake is positioned on the bottom of cooling chamber, for example, be arranged in heat insulation groove, and this nitrogen lake is covered by grid.The operating personnel 1 that wear protective garment 100 walk on grid.Temperature on bottom, no better than the temperature of liquid nitrogen, is similar to-195 ℃.Shoes 50 are configured to guarantee that operating personnel's pin 4 obtains reliably protecting, even if liquid nitrogen upwards spills from bottom, or people walk in liquid nitrogen with shoes 50 under damaged condition.
The nitrogen lake of the cooling device of the cooling chamber in heat dam has the degree of depth that is not more than 5cm conventionally.Therefore, shoes 50 are equipped with raises sole 51, and the sole 5 that is designed to make operating personnel 1 in bottom above distance h place, this distance h is greater than the degree of depth in the nitrogen lake of cooling device.Distance h is for example greater than 5cm, is particularly greater than 6cm.
And the bottom side of shoes 50 is so that shoes 50 can not see through the mode of liquid nitrogen form.Therefore the upper area of, raising sole 51 and shoes 50 is formed by low-temperature resistant plastic, for example PTFE, pottery, glass composite, carbon laminate.Stop the injured protective layer 53 of machinery to be arranged on the surface of shoes 50, this protective layer for example consists of pottery, wire netting or plastic wire.
Raise sole 50 and there is the sole type exterior feature 51.1(of portion referring to Fig. 6 A), walking stationarity improves by this sole type exterior feature portion 51.1,, is lowered with the contact surface of bottom meanwhile.The cavity 51.2 being evacuated is arranged on to be raised in sole, for further heat insulation.
The plastic foil of heat-reflecting layer 54, for example coated with aluminum and the thermal insulation layer 55 of for example being made by foam of polymers are arranged in shoes 50.The electric heating layer 37(extending on the bottom side of pin 4 and also extend at the side of pin 4 or upside is alternatively shown in dotted line) be embedded in thermal insulation layer 55 in or be arranged on the surface of heat-reflecting layer 54.
Thermal insulation layer 55 comprises the inside 56 of the blanketing gas of shoes 5, for holding pin 4.Inner 56 are formed to such an extent that be obviously greater than required space, people's pin space.In this way, operating personnel can wear in addition the people that the fabric of lining and shoes 50 can be had different pin sizes and use.But realizing good adaptation for pin 4 is only had compared with low activity in shoes 50, flexible adaptation element 58 is arranged in the top 57 of shoes 50.Adaptation element 58 is enough kept the upper part of pin 4 and/or lower shank 6, to allow required power mobile in the situation that to be delivered to shoes 50.Below pin 4, thermal insulation layer 55 becomes shoes insert 55.1, and described shoes insert consists of plastic foil, PTFE paper tinsel, carpet veneer, froth bed, the glass laminates of elastic hot reflecting material, for example metallizing.Shoes insert 55.1 is for the suitability of the heat insulation of pin 4 and raising shoes 50.
For in cooling chamber for example in maintenance work process or when wear the operating personnel of protective garment when shelf fetch shuttle, use hand particular importance.Operating personnel use gloves 70(referring to Fig. 1) directly contact with cold surface.The sample cell that have undersized shuttle, for example has a size of several centimetres must be caught safely and keep by gloves.In this respect, need the activity of finger, wherein, from finger, to the heat transmission of shuttle, will be minimized simultaneously.
Conventionally, gloves according to the present invention be applicable to be combined with protective garment or alternatively at the temperature that is low to moderate-200 ℃ the cooling system under normal pressure (for example, cooler bin or horizontal chest freezer) be used in combination.In this, gloves can be connected with supply and control system, according to the design (particularly thering is or do not have the option of expansion under compressed-air actuated effect) of the design of gloves heater (particularly resistance-type heating or heat medium loop), glove material and together with protective garment or cooling system service condition, described supply and control system comprise current source or heat medium source, compressed air source and sensor device.Compressed air source is connected with a part for the heater for adding hot-air and dry air, and is connected with the flow control apparatus of the discharge air for setting outflow gloves.Sensor device preferably comprises temperature sensor in the palm area of each finger chamber and the back of the hand and gloves.And, can be provided for surveying air pressure in gloves and the sensor of Air Flow.Sensor device is connected with alarm device, to occur that in gloves disadvantageous mode of operation can send signal.Heater, will be explained this for design in the same manner described in the heater in clothes below in further detail with above.Described feature realizes by gloves 70 according to the present invention, shown in the preferred embodiment of described gloves 70 in Fig. 7-11.
According to Fig. 7 A, the gloves 70 with multiple fingers chamber 73 are made by proximity gloves material 71, and described proximity gloves material 71 is formed for the inner space of the hand that holds operating personnel.Normally multilayer of glove material 71, and in structure just identical with the sheath material of clothes, and do not there is alternatively the layer of storage.For example, proximity gloves material 71 comprises gas impermeable cold-resistant crust 71.1 and at least one thermal insulation layer 71.2 from outside to inside.Crust 71.1 comprises composite, for example, use the gluing fabric of adhesive.Thermal insulation layer 71.2 for example consists of plastics, PTFE paper tinsel, carbon composite, felt fabric, paraffin or the wax composite and the laminated fabric that are coated with metal.For heat radiation being reflected back into the heat reflection paper tinsel of gloves 70, be arranged on the inner surface of thermal insulation layer 71.2.
Compared with the sheath material of clothes, proximity gloves material 71 can have the structure of simplification and the heat-insulating capability reducing.But this is not concerning being crucial according to the actual use of protective garment of the present invention, because compared with the remaining surface of protective garment, gloves 70 only form little thermal source.
For the zone of heating (heating foil) 77 of resistance-type heating, be arranged on the inner surface of proximity gloves material 71.Zone of heating 77 is so that heat is particularly transmitted to the mode of the surrounding of forearm, palm and finger arranges.Can in the forward part that grasps finger (thumb, forefinger and middle finger), implement the only heating of the top side for gloves 70 (pointing to a side of the back of the hand).
Grip areas 74 is arranged on the grip surface of the finger chamber 73 for grasping finger, and in grip areas, compared with the remainder of gloves 70, proximity gloves material 71 has lower than 1cm, particularly lower than the thickness that reduces of 0.5cm.Grip areas 74 advantageously makes: even at low temperatures, also can use finger pressure sensing, and operating personnel can feel and grasp.The outer surface of grip areas 74 be coated be conducive to catch shuttle by the flexible material of moulding.Due to the described moulding of grip areas 74, reduced the danger that shuttle slips out.
As clothes 10(referring to Fig. 1), the proximity gloves material 71 that also can heat up from inner side, makes the outer surface (crust 71.1) of proximity gloves material 71 also keep flexible and flexible.The temperature of crust 71.1 is for example adjusted to-10 ℃--in the scope of 60 ℃.
The embodiment of the gloves 70 shown in Fig. 7 A and 7B has the connection element 76 schematically showing, and described connection element 76 is suitable for gloves 70 with clothes 10(referring to Fig. 1) arm divide 13 to couple together.Alternatively, if gloves are arranged on cooling system, for example, for manual control sample in cooler bin, connection element 76 so that the mode that operating personnel can insert in gloves from the outer hand by him be connected with the outer wall of cooling system.And, in this case, exist via connection element 76 and being connected of external current source for powering to gloves electric heater.
Gloves 70 can be separation with clothes 10.Thereby gloves can advantageously be changed according to the size of the hand with application requirements and operating personnel in cooling chamber.Receiving-member 75 for shuttle, for example sample cell is arranged on connection element 76.Receiving-member 75 adapts to the shape of described shuttle.For example, tubular part is provided for and holds sample cell (so-called " suction pipe "), and box or attachment are provided for a bag shape shuttle as receiving-member 75.The advantage that receiving-member 75 has is, shuttle can be deposited provisionally, and wherein, shuttle is not to remain between finger, thereby keeps cold state.But, different from shown in Fig. 7, gloves 70 also can divide 13 to be connected with the arm of clothes 10 securely.
Fig. 7 B shows an embodiment of gloves 70, this gloves 70 with according to the pressure garments of Figure 1B, be used in combination.In this case, for the pipeline of gas inflow (76.1) and outflow (76.2), be positioned at connection element 76.Gloves 70 are warmed, and the hot gas being flowed into (temperature is for example 25 ℃-35 ℃) inflation.Additionally, zone of heating can be arranged on gloves 70, for example with reference to Fig. 7 A describe gloves in.Due to the overvoltage in gloves 70, the hand movably space 78 of blanketing gas is formed between operating personnel's hand 6 and the inner surface of gloves 70.And holding element 72 is provided for a part for hand 6 or the part for forearm of support operation personnel in gloves 70.Holding element 72 for example comprises one or more rings, described one or more rings in wrist area around gloves 70.Holding element 72 allows hand 6 to slip into and skid off, and enough supports is provided to hand 6 simultaneously, transmits power when allowing finger grip.
According to the special benefits of the gloves 70 of Fig. 7 B, be, in the situation that finger tip is crossed cold or other any distress condition, operating personnel's arm can be retracted and can form fist (shown in the dotted line in Fig. 7 B).In this case, the Fast Heating of cold spots is possible excessively.
Different from diagram, the pipeline that flows into (76.1) for gas can preferably form by this way: the outermost end of the gloves 70 of gas between finger tip and the end of finger chamber 73 flows into gloves 70, then towards the direction of wrist, along finger, flow through receiving and distributing, to realize the Fast Heating of finger and hand and there is suitable distance between finger and gloves, fill moving air.In this case, advantageously, except pressure, gas flow particularly keeps constant on its flow direction.
Gloves 70 according to the present invention can be used as three finger-type gloves or provide as five finger-type gloves, as Fig. 8 A and 8B are schematically shown.According to Fig. 8 A, be respectively used to operating personnel's thumb and the finger chamber 73 of forefinger and be provided for another finger chamber 73 of all the other fingers of operating personnel.The part of heater 30 is arranged in each finger chamber 73.In the example illustrating, heater 30 comprises heat medium loop, and this heat medium loop has the pipeline 34 for supplying with the heat medium being warmed and the pipeline 35 of the heat medium that is cooled for circulating, and they are divided into three loops at distributor 36 places.According to Fig. 8 B, correspondingly provide five finger chambers to hold each finger of operating personnel.In this case, the pipeline 34,35 of heater 30 is punished into five loops at distributor 36, and they extend respectively in the dorsal side of gloves 70.
And Fig. 8 A and 8B have schematically shown pressure piping joint 76.3, described pressure piping joint 76.3 has for Compressed Gas, for example compressed air being supplied to the pipeline of gloves 70 and the pipeline for gas-pressurized is flowed out.Due to overvoltage, the space of operating personnel's the transportable blanketing gas of hand (referring to Fig. 7 B) is formed between operating personnel's hand and the inner surface of gloves 70.Pressure piping joint 76.3 approach connection element 76(are referring to Fig. 7 B), and be connected with pressurized-gas source.
Fig. 8 C has schematically shown according to gloves 70 of the present invention also can be furnished with hinge area 14, and in this case, described hinge area 14 forms and grasps line (folding part) on the thumb of gloves 70.Grasp line for example the mode of describing referring to Figure 12 is constructed below.According to a kind of modified variant of gloves 70, can save the hinge area that is used to form thumb line.As a kind of alternative, glove material can be modified in the region of thumb line, to guarantee the flexible of gloves.For example, can in the region of thumb line, in the layer compound of glove material, provide discontinuities, for example, the region (referring to Fig. 7 A) that the thickness of gap or thermal insulation layer 71.1 reduces.
Fig. 9 and 10 shows according to the further details of the grip areas 74 on the finger chamber of gloves 70 of the present invention.According to Fig. 9, grip areas 74 is positioned the region of the finger tip of the hand of putting into gloves 70 in the part of the finger chamber for holding thumb and forefinger.Grip areas 74 so that they in the closed mode arranging relative to one another while grasping operation of carrying out of gloves 70, locate.Grip areas 74 is characterised in that, compared with gloves remainder, glove material has the thickness reducing.Like this, for operating personnel, in grip areas 74, retained sense of touch.The for example safety of sample container keeps being guaranteed, because confining force controlled by artificially, and can avoid slipping out unexpectedly arbitrarily of shuttle.
When gloves are affected by internal pressure, grip areas 74 represents according to the feature of the particular importance of gloves of the present invention.That finger chamber is formed with on finger inner side is thinner, by the material of moulding, for grasping neatly even little object.In the situation that contacting with perishing outer solid, grip areas 74 causes operating personnel's the finger that is positioned at contact area to cool off.Layer forms by this way: at the temperature of the solids of-200 ℃, also can keep the contact of several minutes, and not have problem.After the object keeping discharges, operating personnel's the finger areas turning cold can be heated.According to the present invention, this heating realizes in this way: after discharging object, due to the internal pressure in gloves, finger tip no longer contacts with glove material, makes finger tip be surrounded heating and promptly be heated by the interior media in gloves.Internal pressure in gloves is selected by this way: when grasping, needn't overcome large mechanical resistance finger surface is contacted with sheath material.This finger of glove principle for repeating to grasp and put down object, for example object that uses in low-temperature cold store is particularly advantageous.
Figure 10 shows a kind of modification of gloves 70, and for these gloves 70, gloves heater forms by heat medium loop.According to Figure 10, using forefinger, as the grip areas 74 shown in example, in Figure 11, with the schematic cross sectional views of glove material, be exaggerated and illustrate.Figure 11 shows the grip areas 74 in glove material, and described grip areas 74 is formed air-tightness crust 71.3, stabilized zone 71.4, has the thermal insulation layer 71.5 of heat reflection paper tinsel 71.6 in this example, heating region 25, the storage layer 71.7 with endothelium 71.8 and tissue layer 71.9.For effective grip areas 74 is provided, in the storage layer 71.7 in glove material, reserve vacancy portion just enough, this vacancy portion has the lateral expansion size of for example 2cm.
Be provided alternatively and be used according to the hinge area 14(on protective garment 100 of the present invention referring to Figure 1B and Fig. 8 C) more details be schematically shown in Figure 12 A and 12B.According to Figure 12 A, hinge area 14 comprises movably joint component 14.1.For example, for elbow joint, the rigidity that joint component 14.1 is divided at arm, between tubular element 13.1,13.2.Joint component 14.1 is implanted in glove material, to form, in gloves 70, grasps line (referring to Fig. 8 C).Hinge area 14 has corrugated tube shape syndeton.Rib 14.2 that can be mobile is relative to each other connected to each other by means of flexible composite material 14.3.Composite consists of crust 14.4, mechanical attachment layer 14.5, heating region 25 and the thermal insulation layer 14.6 of air-tightness mechanically robust from outside to inside.Mechanical attachment layer 14.5 for example comprises Web materials, and rib 14.2 is connected to each other by means of described Web materials.Heating region 25 is provided for the resistance-type heating of hinge area 14.This can move whole hinge area itself under the external temperature that is low to moderate-200 ℃.The increase of the heat loss in hinge area can be accepted, because they have low size and because the importance of their function compared with the whole surface of clothes.The line that grasps that can be provided for other hinge area 14, for example leg joint or wrist joint or gloves on clothes 10 has structure same as shown in Figure 12.
If protective garment according to the present invention is connected with external device (ED) via supply lines (cable, heat medium pipeline), supply lines must approach cooling chamber and must be protected and prevent low temperature damage it.This schematically shows as example using cable in Figure 13.The danger of not stumbling in cooling chamber in order to make easily to approach all parts of cooling chamber, supply lines is preferably formed extensile.This is by spiral-shaped realization (Figure 13 A).Spiral supply lines is flexible, and its length concrete condition that can adapt to use in cooling chamber.In order to keep the flexible of supply lines and to prevent that any of heat-barrier material and sheath from breaking, supply lines 220 is by electrical heating, as being schematically shown in Figure 13 B.
Cable 221 is positioned at supply lines 220, and described cable is embedded in electric insulation layer 222.The zone of heating 223 with heat reflection paper tinsel (not shown) is arranged on the surface of electric insulation layer 222.Thermal insulation layer 224 is positioned on the outside of zone of heating 223, and described thermal insulation layer is surrounded by flexible restrictive coating 225, and described flexible restrictive coating 225 tolerates liquid nitrogen.Zone of heating 223 is energized stream, makes supply lines 220 until its surperficial temperature increases.
To the heating of supply lines 220 preferably by back portion 60(referring to Fig. 1) in current source carry out.This advantageously guarantees the permanent validity of flexible supply lines 220 in cooling chamber.All other routes, for example pressure piping, liquid line or vacuum line have and structure identical shown in Figure 13 B.
Figure 14 shows for the supply of protective garment 100 according to the present invention and the general view of control system, and operating personnel utilize this protective garment 100 at the temperature that is low to moderate for example-200 ℃, under normal pressure, in cooling chamber, to work.Control module 80 is positioned on protective garment 100, utilizes this control module can send signal, and can carry out setting operation to multiple parts of protective garment 100.Supply and control system are illustrated as holding protective garment 100 in the drawings, and wherein, line schematically shows be connected (signal connects and/or material connects) with protective garment 100.
The supply and the control system that are preferably provided for operation protective garment 100 comprise power supply 61(battery), heater 30 and breathe air source 62.Power supply 61 heat are arranged on back portion 60(isolator referring to Fig. 1) in and there is a capacitance, described capacitance is enough for heater and protective garment work 15-60 minute.Being connected via the external power source in supply lines 220 and for example cooling chamber or contiguous operation room is provided.This makes to save or internal electric source 61 is charged or can be specific application scenario provides additional energy.Heater 30 comprises the heating element heater and the heater control module that are integrated in protective garment, and described heating element heater is by the mode with electric or utilize heat medium operation.
The same heat in breathe air source 62 is arranged on (referring to Fig. 1) in back portion 60 isolator.Breathe air source 62 and breathe air pipeline and valve are isolated by heat equally, if need to also be configured to, can heat.Preferably, breathe air source 62 is based on compressed air system or removal CO 2the circulatory system with oxygen gas-supplying.Breathe air utilizes a part for heater 30 by temperature adjustment, if need to also use sensor and control circuit in protective garment 100.
If protective garment 100 is designed to pressure garments (Figure 1B), other compressed air source 63 is arranged in back portion 60 (referring to Fig. 1).The intermediate layer 29 of inflatable is supplied to air by compressed air source 63, for the heat isolation (referring to Fig. 4 A) in sheath material 20.And compressed air source 63 can be associated with heat medium loop.In addition, can be provided for the device 65 that pumps into or produce for vacuum of pressure generation or fluid loop.
The helmet 40 is connected with the radio system with antenna 40.5, for space outerpace, communicates by letter with the other staff in cooling chamber, and the helmet 40 is also connected with lighting device 40.4, photographic means 40.10 and the microphone 40.6 for radiotelephone communication.
And, protective garment has sensor device 90, and described sensor device 90 has external sensor 91(temperature, oxygen content) and be positioned at internal sensor 92(temperature, pressure, oxygen content, remaining time, alarm signal, the sound radio that various positions (brothers, body region, head) are located).Especially, shoes and the sole at this are equipped with temperature sensor.
When utilizing sensor device 90 to be recorded to respect to normal condition, occurred unallowed departing from, alarm device 64 is to operating personnel and outwards give the alarm (alarm signal or message).Alarm for example can show or reflex to wherein and/or by voice mode and is sent to operating personnel in the front window of the helmet 40 41.Therefore, operating personnel can automatically receive the instruction of how to take action, for example, leave immediately cooling chamber, start urgent feedway or be connected to exterior source of energy or pressed gas feedway.
Under the extreme condition of the inefficacy of the component of a system in cooling chamber, will cause rapidly life-threatening situation.In the case of the cooling chamber of nitrogen, operating personnel are under irrespirable outside atmosphere.Therefore, any inefficacy of breathe air feedway can produce serious result immediately.Only will life-threatening for the inefficacy of the thermoregulating system of breathe air.The inefficacy of protective garment heating system also has similar result.Therefore, material becomes rigidity at the temperature that is low to moderate-100 ℃, activity is limited widely or movement can cause mechanical damage.For fear of these danger, urgent feedway 44 is provided, described urgent feedway is schematically shown in Figure 14, and for example in the region at the rear portion of head, is integrated in (referring to Fig. 5 B) in the helmet 40.Urgent feedway 44 is alternatively attached to another position (for example, belt) of protective garment.The isolation of this system utilization heat and its own thermoregulating system provide the urgent supply of the breathe air of about 5 minutes, and are that the heating of the most important element (for example, joint, pin) of radio telephone, illumination and protective garment provides electric energy supply.And, for the instruction under different situations, with preset program, to store, described instruction can outwards transmit and transmit to the personnel under danger via the loudspeaker in language and the helmet via radio.
Conventionally, simultaneously at least two people in cooling chamber.In protective garment, there is the connection element that allows the protective garment feed system losing efficacy to supply with by the second protective garment.In the situation that using urgent feedway 44, personnel on the line can save oneself within the remaining time of announcing or show, or the personnel in cooling chamber and external staff can approach this personnel on the line, maybe can start rescue system.
In above description, claims and accompanying drawing disclosed feature of the present invention individually and their combination for implement various designs of the present invention all important.

Claims (24)

1. a protective garment (100), especially for the operating personnel in cooling chamber (1), comprising:
-clothes (10), it has heat insulation gas-impermeable sheath material (20), and is suitable for holding operating personnel (1), and
-heater (30), it is connected to clothes (10), and is suitable for adding the inside of heat-protective clothing (100), wherein
-protective garment (100) is applicable in cooling chamber, and described cooling chamber utilizes the steam of liquid nitrogen or liquid nitrogen cooling.
2. protective garment as claimed in claim 1, is characterized in that,
-heater (30) comprises resistance type heater (31), and described resistance type heater is arranged in clothes (10).
3. protective garment as claimed in claim 2, is characterized in that,
-heater (30) comprises zone of heating (32), and described zone of heating distributes and is arranged in clothes (10).
4. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-heater (30) comprises the heat medium loop (33) for gaseous state or liquid heat medium, and described heat medium loop is arranged in clothes (10).
5. protective garment as claimed in claim 4, is characterized in that,
-heat medium loop (33) comprises multiple pipelines (34,35), and described multiple pipelines distribute and are arranged in clothes (10).
6. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-sheath material (20) has sandwich construction, and comprise from outside to inside air-tightness crust (21), stabilized zone (22), particularly there is thermal insulation layer (23) and the heating region (25) of heat reflection paper tinsel (24), being arranged at least partly in heating region (25) of heater (30).
7. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-sheath material (20) comprises at least one intermediate layer (29) that is filled with gas or be evacuated.
8. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-heater (30) is embedded in sheath material (20), and the thermal conduction characteristic of sheath material (20) is chosen to make the major part of the heat being discharged by heater (30) to be transmitted in the inside of protective garment (100) and all the other heats heat sheath material (20) in outside direction, so that sheath material keeps flexible under the environment temperature lower than-90 ℃.
9. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-clothes (10) is equipped with the helmet (40).
10. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-clothes comprises that the shank connecting via hinge area (14) divides, body part and arm divide (11,12,13).
11. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-clothes (10) comprises belting (15), and bracing or strutting arrangement can connect with described belting.
12. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-clothes (10) has in front side the opening of entering, and the layer of sheath material (20) is at the described opening part bracing that enters.
13. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-protective garment (100) comprises urgent feedway, and described urgent feedway comprises breathe air holder and at least one of the coupling arrangement of outside feedway.
14. as the protective garment as described in arbitrary in claim 9-13, it is characterized in that,
-the helmet (40) has at least one in front window (41), pressure relief valve (42), window heater (41.1) and the rearview mirror (44) of being made by double walled, the window material that can be evacuated.
15. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-clothes (10) is equipped with shoes (50), and described shoes have to be raised sole (51), prevent at least one in injured protective layer (52), sole hollow space (53) and the flexible adaptation element (58) of machinery.
16. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-respiratory gas source (60) is provided in protective garment and supplies with respirable air.
17. protective garments as claimed in claim 16, is characterized in that,
A part for-heater (30) is configured for the air that heating is supplied with by breathe air source (60).
18. as the protective garment as described in arbitrary in claim above, it is characterized in that,
-clothes (10) is provided with at least one gloves (70) of being made by proximity gloves material (71), and
-described at least one gloves (70) comprise gloves heater (77).
19. protective garments as claimed in claim 18, is characterized in that,
-holding element (72) is arranged in the inside of described at least one gloves (70), and is configured for fixing operating personnel's hand or a part for forearm in described at least one gloves (70), wherein,
All the other inner sizes of-described at least one gloves (70) are selected to operating personnel's (1) finger can be moved freely in gloves (70).
20. protective garments as described in claim 18 or 19, is characterized in that,
It is upper that-grip areas (74) is arranged on the finger of glove (73) of described at least one gloves, and in described grip areas, compared with all the other regions of gloves (70), glove material (71) has the thickness reducing.
21. protective garments as claimed in claim 20, is characterized in that,
-grip areas (74) has by the surface of moulding on the outside of gloves (70).
22. as the protective garment as described in arbitrary in claim 18-21, it is characterized in that,
-described at least one gloves (70) are configured to be heaved by internal pressure, and making in the inside of gloves (70) to form is enough to allow that finger contacts with glove material from finger grasps position and move to the space of the heating location that finger do not contact with glove material.
23. as the protective garment as described in arbitrary in claim 18-22, it is characterized in that,
-described at least one gloves (70) have the receiving-member (75) for sample carrier in outside.
Protective garment described in arbitrary in claim before 24. is for the protection of operating personnel's purposes, in the cooling chamber of described operating personnel in 90 ℃ of temperature Di Yu –.
CN201280016871.1A 2011-02-02 2012-02-01 Protective garment in cooling chamber Expired - Fee Related CN103747696B (en)

Applications Claiming Priority (3)

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DE102011010119A DE102011010119A1 (en) 2011-02-02 2011-02-02 Protective suit for use in a cold room
DE102011010119.5 2011-02-02
PCT/EP2012/000452 WO2012104081A2 (en) 2011-02-02 2012-02-01 Protective suit for use in a cooling chamber

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EP (1) EP2670265B1 (en)
JP (1) JP6200329B2 (en)
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US9381385B2 (en) 2016-07-05
US20130305438A1 (en) 2013-11-21
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EP2670265A2 (en) 2013-12-11
JP6200329B2 (en) 2017-09-20
DE102011010119A1 (en) 2012-08-02
WO2012104081A2 (en) 2012-08-09
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WO2012104081A8 (en) 2012-11-08
EP2670265B1 (en) 2019-04-03

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